The Vacuum Tube’s Last Stand(s)

When most people think about vacuum tubes, they picture big glass bottles glowing inside antique radios or early computers. History often treats tubes as a dead-end technology that was suddenly …read more

Hackaday Links: May 10, 2026

While Artemis II was primarily a demonstration flight of the architecture NASA plans to use for future lunar missions, it was also an excellent excuse for the crew to snap …read more

Hackaday Podcast Episode 369: IR, E-Ink, And Avgas

In this episode, Hackaday Editors Elliot Williams and Tom Nardi start things off by discussing the latest reason that cheap PCB fabrication isn’t quite as cheap as it once was. …read more

This Week In Security: Another Linux Exploit, Ubuntu Knocked Offline, Finals Interrupted, And Backdoored Tools

After the CopyFail vulnerability gave root access from any user on almost all distributions last week, this week we’ve got DirtyFrag. This chains the vulnerability in CopyFail (xfrm-ESP) and a …read more

Congratulations To The Green Powered Challenge Winners!

For this challenge, we asked you to show off your hacks that power themselves sustainably from the environment around them. After all, nobody likes wires, and changing batteries is just …read more

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Building A Device To Map Magnetic Fields

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By Zoe Skyforest | May 19, 2026

Magnetic fields are all around us. We can’t really feel or see them ourselves, per se, but we can map them with the right hardware, like this device built by …read more
The 8-bit Web Server

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By Al Williams | May 19, 2026

Even [maurycyz] doesn’t think it is a good idea, but it is possible to use an AVR 8-bit CPU to serve web pages. Of course, it is a vastly simplified …read more
Building A Pip Boy Themed Smartwatch

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By Zoe Skyforest | May 19, 2026

One of the problems with good science fiction is that it introduces us to all kinds of cool devices that we can’t actually have in real life. [Huy Vector] has …read more
Recreating A Broken Laminated Wooden Furniture Part

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By Maya Posch | May 19, 2026

Everyone loves those rather bouncy wooden lounge chairs that got popularized by a certain Swedish seller of furniture, but as tough as they are, the laminated wood can still break …read more
How Pulse Oximetry Figures Out Your Blood Oxygen Levels

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By Zoe Skyforest | May 19, 2026

If you’ve ever had a medical team investigating cardiac issues, you’ve probably had a bunch of electrodes stuck all over your chest and been hooked up to an electrocardiogram. This …read more
Biofeedback Butterfly Beats With A Pulse

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By Zoe Skyforest | May 19, 2026

Biofeedback is the idea of making one conscious of a biological process or feature, and then using this to try and exert control over the very same. [Mariia Hruntes] demonstrates …read more
How Search Engines Enabled Finding Needles In A WWW-Sized Haystack

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By Maya Posch | May 19, 2026

When the World Wide Web surged into existence during the 1990s, we were introduced to the problem of how to actually find something in this ever-ballooning construction zone that easily …read more

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The Vacuum Tube’s Last Stand(s)

Hackaday Links: May 10, 2026

Hackaday Podcast Episode 369: IR, E-Ink, And Avgas

This Week In Security: Another Linux Exploit, Ubuntu Knocked Offline, Finals Interrupted, And Backdoored Tools

Congratulations To The Green Powered Challenge Winners!

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How Search Engines Enabled Finding Needles In A WWW-Sized Haystack

Teardown: ChargeTab Emergency Phone Charger

2026 Hackaday Europe: Pre-party, More Workshops, And Everything Else

The Vacuum Tube’s Last Stand(s)

There’s More To Global Positioning Than Just GPS

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How Pulse Oximetry Figures Out Your Blood Oxygen Levels

How To Make Steel That Breathes

This Week In Security: Android Exposes ADB, ShinyHunters Get Paid, Robot Dogs, And More

Hackaday Links: May 17, 2026

Ask Hackaday: Do We Need A 21st Century Calculator?

The Vacuum Tube’s Last Stand(s)

Hackaday Links: May 10, 2026

Hackaday Podcast Episode 369: IR, E-Ink, And Avgas

This Week In Security: Another Linux Exploit, Ubuntu Knocked Offline, Finals Interrupted, And Backdoored Tools

Congratulations To The Green Powered Challenge Winners!

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